86,730 research outputs found

    Мова опису апаратури Verilog. Комп’ютерний практикум

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    Матеріали надано відповідно програми навчальної дисципліни «Системи автоматизованого проектування радіоелектронної апаратури - 1». В посібнику розглядаються наступні питання: принципи роботи САПР, призначеної для моделювання цифрових пристроїв, базові конструкції мови опису апаратури Verilog та способи опису різноманітних цифрових пристроїв. Кожна лабораторна робота містить теоретичні відомості, приклад реалізації цифрового пристрою та перелік завдань для самостійної роботи. Перша робота дає можливість познайомитися зі спеціалізованим програмним середовищем для моделювання поведінки цифрових пристроїв за допомогою мови опису апаратури. Надаються необхідні відомості стосовно порядку створення та тестування проектів. Наступні чотири роботи дають можливість познайомитися з базовими конструкціями мови Verilog, та способами опису простих цифрових пристроїв – комбінаційного та послідовного типів. Останні три роботи навчають принципам опису складних пристроїв та способам їх перевірки з використанням спеціальних файлів для тестування (test-bench file).The materials are provided according to the curriculum program "Systems for the automated design of radio electronic equipment - 1". The manual describe the principles of CAD for modeling digital devices, the basic design of the language description of Verilog equipment and ways to describe various digital devices. Each laboratory work contains theoretical information, an example of the implementation of a digital device and a list of tasks for independent work. The first work provides an opportunity to get acquainted with a specialized software environment for modeling the behavior of digital devices using the hardware description language. Provides the necessary information on the procedure for creating and testing projects. The following four works provide an opportunity to get acquainted with the basic constructs of the Verilog language, and ways of describing simple digital devices - combinational and sequential types. The last three works teach the principles of describing complex devices and how to test them using special test files (test-bench file)

    A model of a generalized chip structure

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    Three distinct levels can be distinguished in the design of digital systems: architecture, implementation and realization. Description methods are available at each level assuming that at the realization level components such as nands and nors are used. The introduction of programmable components, such as microprocessors and programmable input/output chips, which now form the basis elements at the realization level, forces to reconsider these description methods

    For operation of the Computer Software Management and Information Center (COSMIC)

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    During the month of June, the Survey Research Center (SRC) at the University of Georgia designed new benefits questionnaires for computer software management and information center (COSMIC). As a test of their utility, these questionnaires are now used in the benefits identification process

    Spacelab software development and integration concepts study report, volume 1

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    The proposed software guidelines to be followed by the European Space Research Organization in the development of software for the Spacelab being developed for use as a payload for the space shuttle are documented. Concepts, techniques, and tools needed to assure the success of a programming project are defined as they relate to operation of the data management subsystem, support of experiments and space applications, use with ground support equipment, and for integration testing

    ERIGrid Holistic Test Description for Validating Cyber-Physical Energy Systems

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    Smart energy solutions aim to modify and optimise the operation of existing energy infrastructure. Such cyber-physical technology must be mature before deployment to the actual infrastructure, and competitive solutions will have to be compliant to standards still under development. Achieving this technology readiness and harmonisation requires reproducible experiments and appropriately realistic testing environments. Such testbeds for multi-domain cyber-physical experiments are complex in and of themselves. This work addresses a method for the scoping and design of experiments where both testbed and solution each require detailed expertise. This empirical work first revisited present test description approaches, developed a newdescription method for cyber-physical energy systems testing, and matured it by means of user involvement. The new Holistic Test Description (HTD) method facilitates the conception, deconstruction and reproduction of complex experimental designs in the domains of cyber-physical energy systems. This work develops the background and motivation, offers a guideline and examples to the proposed approach, and summarises experience from three years of its application.This work received funding in the European Community’s Horizon 2020 Program (H2020/2014–2020) under project “ERIGrid” (Grant Agreement No. 654113)

    A NASA family of minicomputer systems, Appendix A

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    This investigation was undertaken to establish sufficient specifications, or standards, for minicomputer hardware and software to provide NASA with realizable economics in quantity purchases, interchangeability of minicomputers, software, storage and peripherals, and a uniformly high quality. The standards will define minicomputer system component types, each specialized to its intended NASA application, in as many levels of capacity as required

    Advanced CO2 removal process control and monitor instrumentation development

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    A progam to evaluate, design and demonstrate major advances in control and monitor instrumentation was undertaken. A carbon dioxide removal process, one whose maturity level makes it a prime candidate for early flight demonstration was investigated. The instrumentation design incorporates features which are compatible with anticipated flight requirements. Current electronics technology and projected advances are included. In addition, the program established commonality of components for all advanced life support subsystems. It was concluded from the studies and design activities conducted under this program that the next generation of instrumentation will be greatly smaller than the prior one. Not only physical size but weight, power and heat rejection requirements were reduced in the range of 80 to 85% from the former level of research and development instrumentation. Using a microprocessor based computer, a standard computer bus structure and nonvolatile memory, improved fabrication techniques and aerospace packaging this instrumentation will greatly enhance overall reliability and total system availability
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